3990762504961 has 8 divisors (see below), whose sum is σ = 4006726353504. Its totient is φ = 3974799168000.

The previous prime is 3990762504947. The next prime is 3990762505001. The reversal of 3990762504961 is 1694052670993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3990762504961 - 2²³ = 3990754116353 is a prime.

It is a super-2 number, since 2×3990762504961² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3990762504961.

It is not an unprimeable number, because it can be changed into a prime (3990762304961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26817186 + ... + 26965588.

It is an arithmetic number, because the mean of its divisors is an integer number (500840794188).

Almost surely, 2^{3990762504961} is an apocalyptic number.

It is an amenable number.

3990762504961 is a deficient number, since it is larger than the sum of its proper divisors (15963848543).

3990762504961 is a wasteful number, since it uses less digits than its factorization.

3990762504961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255791.

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 3990762504961 in words is "three trillion, nine hundred ninety billion, seven hundred sixty-two million, five hundred four thousand, nine hundred sixty-one".